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सिद्ध कीजिए की: (i ) (sin5A -sin 3A )/...

सिद्ध कीजिए की:
`(i ) (sin5A -sin 3A )/( cos 5A +cos 3A) = tan A `
` (ii) (sin A +sin 3A) /( cosA +cos 3A ) `

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